REG - Andrada Mining Ltd - Brandberg West First Batch Drill Results
12/09/2024 07:00
For best results when printing this announcement, please click on link below:
http://newsfile.refinitiv.com/getnewsfile/v1/story?guid=urn:newsml:reuters.com:20240912:nRSL9236Da&default-theme=true
RNS Number : 9236D Andrada Mining Limited 12 September 2024
The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 (MAR) as in force in the United Kingdom pursuant to the European Union (Withdrawal) Act 2018. Upon the publication of this announcement via Regulatory Information Service (RIS), this inside information will be in the public domain.
Andrada Mining LimiteD
("Andrada" or the "Company")
Brandberg West Inaugural Drill Results
Notable mineral intersections for tin, tungsten and copper
Andrada Mining Limited (AIM: ATM, OTCQB: ATMTF), a critical raw materials
producer with mining and exploration assets in Namibia, is pleased to provide
results from its inaugural drilling programme undertaken at the historical
Brandberg West mine, situated within the EPL5445 exploration licence. The
objective of this programme is to provide an initial indication of the grade
potential and geology of the historical open pit area and to investigate the
potential mineralisation of the northern extensions. These results constitute
the first batch of samples from this programme, representing ten (10) out of
the twenty (20) holes drilled.
Highlights
All drill holes intersected mineralisation representing the primary metals of
interest, namely tin ("Sn"), tungsten ("W") and copper ("Cu"). Significant
drill intersections include:
§ Drill hole AT3 10:
− 0.86 m at 0.15% Sn, 2.42% W and 0.46% Cu from 30.55 m to 31.41 m
− 2.88 m at 0.78% Sn, 2.65% W and 0.80% Cu from 65.28 m to 68.16 m
− 1.27 m at 0.03% Sn, 1.40% W and 0.69% Cu from 74.03 m to 75.30 m
− 1.02 m at 0.12% Sn, 2.54% W and 0.62% Cu from 100.63 m to 101.65 m
− 0.39 m at 0.30% Sn, 0.01% W and 3.85% Cu from 112.36 m to 112.75 m
§ Drill hole AT3 21:
− 1.68 m at 0.62% Sn, 0.93% W and 0.73% Cu from 46.56 m to 48.24 m
− 4.22 m at 1.12% Sn, 0.83% W and 1.40% Cu from 110.88 m to 115.10 m
− 1.69 m at 0.53% Sn, 1.08% W and 0.96% Cu from 183.92 m to 185.61 m
§ Drill hole AT3 03:
− 1.22 m at 0.95% Sn, 1.15% W and 0.99% Cu from 10.02 m to 11.24 m
− 0.85 m at 1.66% Sn, 0.46% W and 2.19% Cu from 38.76 m to 39.61 m
− 0.89 m at 0.17% Sn, 1.12% W and 1.37% Cu from 42.30 m to 43.19 m
− 0.40 m at 2.01% Sn, 1.65% W and 0.66% Cu from 68.87 m to 69.27 m
− 0.49 m at 4.47% Sn, 0.02% W and 0.91% Cu from 107.51 m to 108.00 m
− 0.45 m at 1.06% Sn, 0.66% W and 0.77% Cu from 112.35 m to 112.80 m
− 0.74 m at 1.49% Sn, 0.82% W and 0.41% Cu from 134.97 m to 135.71 m
§ Drill hole AT3 05:
− 0.84 m at 4.17% Sn, 0.12% W and 0.53% Cu from 10.02 m to 11.24 m
Anthony Viljoen, Chief Executive Officer, commented:
"The Brandberg West project's initial drilling results are highly encouraging
featuring significant high-grade intersections of tin, tungsten and copper.
These intersections, with grades of up to 4% for tin, over 2% for tungsten and
typically 0.5% - 2% for copper, underscore the licence's commercial potential.
Notably, Brandberg West expands Andrada's portfolio of critical metals to
include tungsten and copper. This reinforces the Company's belief that the
Erongo region, in Namibia is a promising mineral - rich area with substantial
inventory to support our key objective to grow the resource base. Furthermore,
the results validate our approach of developing areas with historical mining
activity to bolster our portfolio."
Brandberg West
The Brandberg West project is situated within exploration license EPL 5445 in
the Erongo region of Namibia. The project area is approximately 100km from the
Uis Tin Mine, Andrada Mining's flagship asset. The historical open pit mine at
Brandberg West was owned and operated by Gold Fields Limited until operations
ceased in the 1980's, with the cessation of exploration activities coinciding
with a global collapse of the tin price.
The historical Brandberg West mine produced a tin and tungsten concentrate
with secondary copper being reported but never concentrated and sold. The
mineralisation occurs within multiple generations of quartz veins that trend
east - west and northwest - southeast. Most of these mineralised veins are
subvertical and well exposed within the historically mined areas and
surrounding areas. These quartz veins are hosted by the metasediments of the
Zebraputs Formation, with overlying marble unit having acted as an impermeable
barrier to the mineralising fluids.
Exploration Programme
The exploration programme comprised 20 oriented Diamond Drill (DD) holes for a
total of 2 975m drilled. The results of the first 10 drill holes, representing
1 471 drill meters, are reported in this announcement. This drill programme
sought to investigate the subsurface continuity and metal endowment of the
quartz veins within the historical pit and in the mineralised extensions
identified at surface to the north. All holes were drilled at dip angles of
60° or 45° to target the steeply dipping mineralised veins. These
intersections should be considered as apparent widths, which are greater than
true widths because of the non-perpendicular angles of intersection.
The metals reported herein, namely Sn, W and Cu, represent the primary focus
of this drilling campaign. Anomalous concentrations of silver and gallium were
identified in several of the analysed samples. The economic potential of these
metals will be investigated as the project evolves. The results of this
programme will be utilised to produce an updated geological model which will
form the basis of any follow-up exploration programmes.
Table: Mineralised drill intersections from this programme. The reported
intersections were selected using a 0.2% cut off for Sn, W and Cu. Where
multiple samples were taken from a single quartz vein, the results were
combined to provide a length-weighted average grade for the vein.
Hole ID Dip Angle (Degrees) From - To Length (m) Lithology Sn (%) W (%) Cu (%)
AT3 03 -45 1.80 - 2.14 0,34 Quartz vein 0,01 0,03 0,24
2.14 - 4.00 1,86 Schist 0,02 0,01 1,02
10.02 - 11.24 1,22 Quartz vein 0,95 1,15 0,99
12.36 - 14.00 1,64 Quartz vein 0,62 0,02 1,69
25.46 - 25.73 0,27 Quartz vein 0,53 0,49 0,12
28.96 - 29.69 0,73 Quartz vein 0,04 0,00 0,55
38.76 - 39.61 0,85 Quartz vein 1,66 0,46 2,19
40.39 - 41.77 1,38 Quartz vein 0,06 0,29 0,19
42.30 - 43.19 0,89 Quartz vein 0,17 1,12 1,37
44.12 - 44.54 0,42 Quartz vein 0,04 0,01 0,61
58.00 - 58.75 0,75 Quartz vein 0,03 0,00 1,62
68.87 - 69.27 0,40 Quartz vein 2,01 1,65 0,66
70.21 - 70.75 0,54 Quartz vein 0,20 0,05 0,85
90.36 - 91.24 0,88 Quartz vein 0,14 0,03 1,21
98.89 - 99.20 0,31 Quartz vein 0,21 0,75 0,53
100.29 - 101.41 1,12 Quartz vein 0,12 0,02 0,28
107.51 - 108.00 0,49 Quartz vein 4,47 0,02 0,91
112.35 - 112.80 0,45 Quartz vein 1,06 0,66 0,77
129.41 - 130.71 1,30 Quartz vein 0,24 0,00 0,11
134.97 - 135.71 0,74 Quartz vein 1,49 0,82 0,41
139.92 - 140.81 0,89 Quartz vein 0,65 0,59 1,59
163.14 - 163.59 0,45 Quartz vein 0,03 0,01 1,25
AT3 05 -60 3.87 - 6.09 2,22 Schist 0,28 0,01 0,03
39.54 - 40.38 0,84 Quartz vein 4,17 0,12 0,53
59.70 - 60.70 1,00 Quartz vein 0,03 0,02 0,24
62.49 - 63.37 0,88 Quartz vein 0,04 0,04 0,36
68.50 - 69.29 0,79 Quartz vein 0,02 0,00 0,28
95.87 - 96.12 0,25 Quartz vein 0,02 0,00 0,42
98.38 - 98.88 0,50 Quartz vein 0,04 0,00 0,42
126.38 - 127.65 1,27 Quartz vein 0,30 0,01 0,18
140.98 - 141.82 0,84 Quartz vein 0,95 0,10 0,63
153.7 - 154.85 1,15 Quartz vein 0,02 0,00 0,21
Hole ID Dip Angle (Degrees) From - To Length (m) Lithology Sn (%) W (%) Cu (%)
AT3 10 -60 20.61 - 22.41 1,80 Greisen 0,02 0,66 0,06
25.95 - 26.54 0,59 Quartz Vein 0,01 1,03 0,28
30.55 - 31.41 0,86 Quartz Vein 0,15 2,42 0,46
32.40 - 33.19 0,79 Schist 0,04 0,03 0,40
37.84 - 38.36 0,52 Quartz Vein 0,24 0,38 0,10
42.86 - 44.66 1,80 Quartz Vein 0,31 0,53 0,21
54.75 - 56.09 1,34 Schist 0,23 0,06 0,06
65.28 - 68.16 2,88 Quartz Vein 0,78 2,65 0,80
74.03 - 75.30 1,27 Quartz Vein 0,03 1,40 0,69
86.48 - 87.23 0,75 Schist 0,04 0,01 0,26
100.63 - 101.65 1,02 Quartz vein 0,12 2,54 0,62
112.36 - 112.75 0,39 Quartz vein 0,30 0,01 3,85
134.00 - 135.00 1,00 Schist 0,08 0,01 0,97
AT3 11 -60 1.00 - 1.90 0,90 Quartz vein 1,13 0,23 0,71
38.55 - 39.24 0,69 Quartz vein 0,10 0,91 0,29
39.24 - 39.77 0,53 Schist 0,01 0,02 0,20
49.85 - 50.69 0,84 Quartz vein 2,90 0,15 0,04
55.66 - 56.46 0,80 Schist 0,29 0,02 0,04
57.00 - 58.23 1,23 Quartz vein 1,65 0,18 0,37
87.00 - 88.12 1,12 Schist 0,01 0,04 0,26
88.12 - 89.02 0,90 Quartz vein 0,04 0,05 0,39
91.00 - 92.00 1,00 Schist 0,02 0,03 0,25
92.98 - 93.63 0,65 Quartz vein 0,76 0,67 0,29
94.62 - 95.43 0,81 Schist 0,02 0,04 0,70
95.43 - 96.31 0,88 Quartz vein 0,02 0,01 0,29
117.71 - 118.13 0,42 Quartz vein 0,02 0,02 0,28
126.45 - 127.29 0,84 Schist 0,02 0,02 0,29
127.29 - 127.74 0,45 Quartz vein 0,01 0,01 0,25
150.19 - 151.00 0,81 Schist 0,01 0,00 0,28
154.77 - 155.04 0,27 Quartz vein 0,02 0,00 0,42
159.82 - 161.07 1,25 Quartz vein 0,02 0,72 0,30
188.45 - 189.19 0,74 Quartz vein 0,03 0,01 0,24
Hole ID Dip Angle (Degrees) From - To Length (m) Lithology Sn (%) W (%) Cu (%)
AT3 12 -60 1.53 - 2.47 0,94 Quartz vein 0,09 1,88 0,40
4.65 - 5.64 0,99 Quartz vein 0,12 0,18 0,57
5.64 - 6.47 0,83 Schist 0,07 0,03 0,26
17.00 - 18.06 1,06 Quartz vein 0,07 1,09 0,64
37.00 - 39.77 2,77 Quartz vein 0,02 0,62 0,16
42.00 - 42.99 0,99 Quartz vein 0,04 0,05 0,21
56.14 - 56.95 0,81 Quartz vein 0,01 0,38 0,01
73.55 - 74.09 0,54 Quartz vein 0,13 0,01 0,62
85.835 - 88.00 2,17 Quartz vein 0,01 0,30 0,08
117.15 - 118.21 1,06 Schist 0,05 0,12 0,08
127.17 - 128.26 1,09 Quartz vein 0,73 1,48 0,22
134.19 - 134.45 0,26 Quartz vein 0,02 0,35 0,11
135.27 - 135.91 0,64 Quartz vein 0,01 0,01 0,64
142.94 - 143.53 0,59 Quartz vein 0,15 0,00 0,35
152.38 - 152.75 0,37 Quartz vein 0,29 0,31 0,32
AT3 21 -60 18.00 - 18.77 0,77 Quartz vein 0,14 0,02 0,31
19.40 - 19.95 0,55 Schist 0,17 0,12 0,19
19.95 - 20.78 0,83 Quartz vein 0,02 0,01 0,28
20.78 - 21.49 0,71 Schist 0,02 0,00 0,38
39.71 - 41.70 1,99 Schist 0,64 0,06 0,36
46.56 - 48.24 1,68 Quartz vein 0,62 0,93 0,73
71.98 - 73.81 1,83 Quartz vein 0,48 0,19 0,14
83.78 - 84.62 0,84 Quartz vein 0,01 0,00 0,30
85.62 - 86.54 0,92 Quartz vein 0,04 0,00 0,60
87.20 - 88.39 1,19 Quartz vein 0,02 0,53 0,19
106.22 - 107.00 0,78 Schist 0,12 0,06 0,31
110.88 - 115.10 4,22 Quartz vein 1,12 0,83 1,40
117.93 - 119.34 1,41 Quartz vein 0,28 0,38 0,94
145.84 - 148.06 2,22 Quartz vein 0,02 0,00 0,19
166.65 - 167.51 0,86 Schist 1,44 0,01 0,28
168.15 - 169.08 0,93 Quartz vein 0,40 0,00 0,26
175.47 - 176.09 0,62 Quartz vein 0,14 0,01 1,71
183.92 - 185.60 1,69 Quartz vein 0,53 1,08 0,96
AT4 23 -60 30.15 - 31.09 0,94 Quartzite 0,02 0,00 0,34
69.73 - 70.90 1,17 Schist 0,03 0,01 0,48
74.91 - 75.18 0,27 Quartz vein 0,10 0,00 0,85
AT5 13 -60 24.72 - 25.72 1,00 Schist 0,01 0,34 0,03
31.27 - 31.58 0,31 Quartz vein 0,03 0,13 1,68
55.72 - 57.63 1,91 Quartz vein 0,01 0,26 0,06
AT5 16 -60 25.80 - 26.16 0,36 Quartz vein 0,03 1,34 0,23
65.04 - 65.29 0,25 Quartz vein 0,13 0,41 0,37
69.12 - 70.12 1,00 Schist 0,01 0,05 0,31
Hole ID Dip Angle (Degrees) From - To Length (m) Lithology Sn (%) W (%) Cu (%)
AT5 20 -60 6.80 - 7.31 0,51 Quartz vein 1,17 0,29 0,37
19.40 - 19.67 0,27 Quartz vein 0,07 1,96 0,32
31.92 - 32.49 0,57 Quartz vein 0,06 1,50 0,52
46.72 - 47.00 0,28 Quartz vein 0,19 0,54 0,23
75.00 - 75.64 0,64 Schist 0,02 0,01 0,42
83.35 - 85.83 2,48 Quartz vein 1,71 0,78 0,82
95.88 - 96.38 0,50 Quartz vein 0,01 0,01 0,33
98.06 - 98.75 0,69 Quartz vein 0,01 0,04 0,22
Downhole orientation surveys using a magnetic deviation probe at two (2) metre
intervals were completed for each hole after drilling, and collar locations
were surveyed using a differential GPS. Veins that did not meet the metal
content cut off criteria have not been reported as they are not currently
considered to be of economic significance.
Each drill hole was geologically and structurally logged and sampled as half
core. The sampling programme attempted to follow geological contacts while
also maintaining consistency in data representativeness The shortest sampled
length was 25cm while the longest was limited to 125cm wherever possible. Once
sampled, the material was dispatched to the laboratory for preparation and
analysis. Sample analysis was undertaken by UIS Analytical Services, a
certified independent laboratory in South Africa, using a lithium borate
fusion. ICP-OES analysis was utilised for major and minor elements whilst
ICP-MS was utilised for the trace elements, including Sn, W and Cu. No top cut
was applied in calculating the weighted average grades for mineralised
intersections.
Figure 1: Map displaying the localities of the reported holes. Line A-A'
indicates the area represented by the cross section in Figure 2 below.
Figure 2: Section line A-A' displaying a projection of the drill hole AT3 03.
Only selected intersections in the drill hole are labelled; the complete set
of mineralised vein intersections is listed in Table 1. The veins shown here
have been extrapolated a small distance from the drill hole and have been
orientated in line with structural measurements from the core logs.
Competent person statement
The technical data in this announcement has been reviewed by Professor
Laurence Robb ("Prof. Robb"), who is a non-executive director of Andrada
Mining. Prof. Robb has over 30 years of industry related exploration and
economic geology experience and is a Competent Person for the reporting of
exploration results. He has reviewed both the technical disclosures in this
release as well as the quality assurance protocols (QA/QC) and results for
this programme.
GLossary of Abbreviations
% Symbol for Percentage
Cu Symbol for Copper
DD Diamond Drilling
ICP-MS Inductively Coupled Plasma-Mass Spectrometry
ICP-OES Inductively Coupled Plasma-Optical Emission Spectrometry
QA/QC Quality Assurance / Quality Control
Sn Symbol for Tin
W Symbol for Tungsten
GLossary of technical terms
Apparent Thickness The thickness of a drill hole intersection at a non-perpendicular angle to the
dip of the mineralised body, which is always greater than the true thickness
by an amount proportional to the angular difference between the intersection
trace and the perpendicular
Dip Angle The angle of inclination measured downward from horizontal
Geological Model The interpretation of mineralisation and host rock geology. This is usually
generated in a three-dimensional computer environment
Greisen Type of phyllic alteration) characterized by micas, quartz and other accessory
minerals
Quartz Vein Distinct, sheet-like body of crystallized quartz within a host lithology,
formed when hydrothermal fluids precipitate minerals while circulating through
fractures or cavities.
Schist A metasedimentary unit showing pronounced schistosity
Top Cut The technique of restricting the grade of outlier high-grade samples during
geostatistical averaging or estimation methodologies to prevent overestimation
CONTACT
Andrada Mining +27 (11) 268 6555
Anthony Viljoen, CEO
Sakhile Ndlovu, Investor Relations
NOMINATED ADVISOR & BROKER
Zeus Capital +44 (0) 20 2382 9500
Katy Mitchell
Harry Ansell
Andrew de Andrade
CORPORATE BROKER & ADVISOR
H&P Advisory Limited +44 (0) 20 7907 8500
Andrew Chubb
Jay Ashfield
Matt Hasson
Berenberg +44 (0) 20 3753 3040
Jennifer Lee
Natasha Ninkov
FINANCIAL PUBLIC RELATIONS
Tavistock (United Kingdom) +44 (0) 207 920 3150
Emily Moss
andrada@tavistock.co.uk
Josephine Clerkin
About Andrada Mining Limited
Andrada Mining Limited is listed on the London Stock Exchange (AIM) with
mining assets in Namibia, a top-tier investment jurisdiction in Africa.
Andrada strives to produce critical raw materials from a large resource
portfolio, to contribute to a more sustainable future, improved living
conditions and the upliftment of communities adjacent to its operations.
Leveraging its strong foundation in Namibia, Andrada is on a strategic path to
becoming a leading African producer of critical metals including lithium, tin,
tungsten and tantalum. These metals are important enablers of the green energy
transition, being essential for components of electric vehicles, solar panels
and wind turbines.
This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact
rns@lseg.com (mailto:rns@lseg.com)
or visit
www.rns.com (http://www.rns.com/)
.
RNS may use your IP address to confirm compliance with the terms and conditions, to analyse how you engage with the information contained in this communication, and to share such analysis on an anonymised basis with others as part of our commercial services. For further information about how RNS and the London Stock Exchange use the personal data you provide us, please see our
Privacy Policy (https://www.lseg.com/privacy-and-cookie-policy)
. END DRLGPUQGBUPCUAPRecent news on Andrada Mining
See all newsREG - Andrada Mining Ltd - Exercise of Share Options
AnnouncementREG - Andrada Mining Ltd - Brandberg West Second Batch Drill Results
AnnouncementREG - Andrada Mining Ltd - Result of AGM
AnnouncementREG - Andrada Mining Ltd - Q2 operational update for period ended 31 Aug 24
AnnouncementREG - Andrada Mining Ltd - Brandberg West First Batch Drill Results
Announcement